ETH Zurich

E-Periodica Schweizer Zeitschriften online. Revues suisses en ligne. Swiss journals online.

Journal
Volume 71 (1991)
Issue 1 _
Article: Emilie Jäger : early days in Washington 1
Article: Sr-Nd-Pb isotope data for Fuerteventura (Canary Islands) basal complex and subaerial volcanics : applications to magma genesis and evolution 3
Article: Isotopic (Rb-Sr and Sm-Nd) and geochemical studies of the metamorphosed volcanic rocks in the metamorphic series below the Semail ophiolite in the Dibba zone (United Arab Emirates) 19
Article: Sr, Nd and O isotopic characterization of the Gophu La and Gumburanjun leucogranites (High Himalaya) 35
Article: Contrasting REE characteristics in meta-lamprophyres from Variscan massifs of the Central Swiss Alps and REE patterns in lamprophyres from Variscan terranes of Western Europe 53
Article: Spaltspuren in Apatit und Zirkon : Schlüssel zur Niedertemperatur- und Hebungsgeschichte der Alpen 63
Article: A hornblende 39Ar-40Ar age traverse of the Bregaglia tonalite (southeast Central Alps) 73
Article: K-Ar and Rb-Sr age determinations on micas of impure marbles of Naxos, Greece : the influence of metamorphic fluids and lithology on the blocking temperature 89
Article: K-Ar dating of manganese minerals from the Eisenbach region, Black Forest, southwest Germany 101
Article: Rb-Sr and oxygen isotope geochemistry on a complex Proterozoic intrusive, Vaaraslahti, Finland 115
Article: Isotope data of metarodingites and associated rocks from the Lanzo and the Bracco ophiolitic massifs : indications on the evolution of the Alpino-type ultramafic-mafic complexes 125
Article: Distribution of exchangeable cations in Mesozoic and Permo-Carboniferous sediments in the subsurface of Northern Switzerland 143
Article: Preparation and cell refinement of mica microsamples 151
Article: Crystallinity distribution and crytallinity - b0 relationships in white K-micas of Verrucano metasediments (Northern Apennines, Italy) 161
Book review 169
Table of Contents _
Issue 2 _
Article: Paradoxes of the mantle lithosphere underneath Archaean continents and models for its origin 175
Article: Tectono-thermal history of Hartford, Deerfield, Newark and Taylorsville Basins, eastern United States, using fission-track-analysis 187
Article: Excess Ar geochemistry in potassic volcanites 205
Article: Geochronology and Sr isotope geochemistry of late-Hercynian dykes from Sardinia 221
Article: Eclogitic shear zones in a granulite-facies anorthosite complex : field relationships and an emplacement scenario : an example from the Bergen Arcs, Western Norway 231
Article: Geochemistry of clinopyroxenes in plutonic and volcanic sequences from the Yanbian Proterozoic ophiolites (Sichuan Province, China) : petrogenetic and geotectonic implications 243
Article: Relics of high pressure metamorphism in the Lepontine Alps (Switzerland) : 40Ar/39Ar and microprobe analyses on white K-micas 261
Article: Analyses K-Ar, Rb-Sr et minéralogiques des fractions argileuses de sédiments quaternaires, Atlantique N-E : résultats préliminaires 275
Article: La microplaque de l'île de Pâques (Pacifique Sud Oriental) : variations isotopiques Pb-Sr-Nd 281
Article: Pillow lavas : comparaisons entre le paléovolcanisme et les coulées des dorsales océaniques 287
Article: Mafic-ultramafic rock associations in the Aar, Gotthard and Tavetsch massifs of the Helvetic domain in the Central Swiss Alps : markers of ophiolitic pre-Variscan sutures, reworked by polymetamorphic events? 295
Article: Superstructures, (Si,Al) and H2O ordering in armenite BaCa2Al6Si9O30 • 2H2O 301
Article: Compte-rendu de l'excursion de la Société suisse de minéralogie et pétrographie dans le Queyras (zone piémontaise des Alpes cottiennes françaises) et le Champsaur (zone externe des Alpes occidentales françaises), Hautes-Alpes, France (1-3 octobre 1990) 305
Association News: Bericht über die 65. Hauptversammlung der Schweizerischen Mineralogischen und Petrographischen Gesellschaft in Genf 325
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Issue 3 _
Article: An uranium series disequilibrium investigetion of reduction spheroids in red beds 333
Article: La présence de Sb-rutile dans les concentrations manganésifères de St. Marcel-Praborna (V. Aoste - Italie) 341
Article: Columbite (Fe,Mn)(Nb,Ta)2O6 in the pegmatites of the calc-alkaline Bergell intrusion (southest Central Alps) 349
Article: The plutonic rocks of the Meissen massif (Germany) : evidence for open and closed system fractionation processes 371
Article: Geochemistry and tectonic significance of Late Hercynian potassic and ultrapotassic magmatism in the Aar Massif (Central Alps) 391
Article: The reaction between olivine and plagioclase as a consequence of fluid-rock interactions during sub-seafloor metamorphism (Al-Mg-gabbros, Northern Apennine ophiolites, Italy) 405
Article: Eclogites from the Minugrat, Siviez-Mischabel nappe (Valais, Switzerland) 415
Article: The formation of fibrolite nodules in a package of melanocratic gneisses from the Hercynian basement of NE Sardinia, Italy 427
Article: Relics of high-pressure metamorphism in different lithologies of the Central Alps, an updated inventory 441
Article: Deconvolution of the first "illite" basal reflection 453
Article: Solid solutions in mineral nomenclature 463
Rubric: New minerals recently approved by the Commission on New Minerals and Mineral Names, International Mineralogical Association 467
Association News: 67. Ordentliche Generalversammlung 1992 in Basel 473
Association News: IMA NEWS 476
Index: Author Index, Keyword Index 477
Index: Jahresinhaltsverzeichnis 485
Table of Contents _